[Payment Protocol x402, Incubated by Coinbase and Designed for AI, Launches V2 Version] According to The Block, x402, an open-source payment protocol incubated by Coinbase and specifically designed for artificial intelligence (AI) agents, is rolling out a major upgrade approximately six months after its initial launch. x402 V2 essentially transforms the previously simple single-call payment system into a fully developed, internet-oriented unified payment layer. The V2 version introduces a series of backend improvements aimed at making it easier to create customizable payment workflows, enhanced wallet and identity features, and support for 'traditional payment systems.' The most significant upgrade in the V2 version is the unification of x402's payment interface. x402 V2 standardizes the way networks and assets are identified within the protocol, 'creating a single payment format that is interoperable across different blockchains and traditional payment systems.' This means x402 will 'natively support multi-chain' by default, enabling support for native tokens on other blockchains like Base or Solana without requiring custom logic. Additionally, the system is compatible with 'traditional payment systems' such as ACH and card networks. The updated system also introduces a dynamic 'payTo' routing feature, which supports payment workflows such as usage-based billing, subscriptions, prepaid payments, and multi-step transactions. Developers can also inject 'lifecycle hooks' for conditional tools or metrics monitoring, enabling the creation of more customized paywalls.